U2 EZM5 GMT 2000M Diver (1020.010-U2-R)

The Sinn U2 SDR stands out because it combines professional dive-watch capability with German engineering. Its submarine-steel case offers exceptional strength and corrosion resistance, while the dual-time function adds everyday practicality. The watch also features extreme water resistance and outstanding legibility, making it a trusted tool for demanding environments.

The Sinn U2 SDR has a clean and highly legible dial. The black dial uses large white hands and markers that stand out clearly in low light. The watch has a strong submarine-steel case that feels solid and purposeful. The SDR version adds a black bezel that gives the watch a stealthy look. A sapphire crystal protects the dial and resists scratches. The steel bracelet feels secure and comfortable, and it matches the rugged character of the watch.

The U2 SDR uses the Sinn SZ02 automatic movement, which is based on the reliable ETA 2893-2. This movement offers a second time zone function, making the watch useful for travel. It runs smoothly and keeps good time in daily wear. Sinn also adds its own modifications to improve durability and performance. The movement supports the watch's tool-watch role and provides dependable operation over many years.

Sinn introduced the U2 as a professional dive watch inspired by German submarine technology. The company designed the model for extreme conditions and deep-water use. The U2 became known for its submarine-steel construction, strong water resistance, and practical design. The SDR version later added the black bezel option for a more tactical appearance. Over time, the U2 line has earned a strong reputation among divers, pilots, and watch enthusiasts who value function and durability.

The watch appears to be in very good pre-owned condition. The case (A SLIGHT DENT ON THE 10 '0' CLOCK SIDE), bezel, and bracelet show light signs of wear consistent with careful use. The crystal looks clean, and the dial remains sharp and well-preserved. The bracelet retains a strong, polished finish with no obvious damage visible in the photos

What do the different grading scores mean?

• BN 9.9: Brand new and unworn, with no signs of use.
• UN 9.5: Like new and unworn, but may lack original packaging or materials such as the box, links, tags, or bezel protector.
• LN 9.0: Like new and unworn, but only includes the watch without papers, box, or accessories.
• MT 8.5: Mint condition, lightly used with minor surface scratches or wear. Unpolished.
• VG 8.0: Moderately used, with scratches and one or two nicks on the case or crystal. Shows signs of polishing. The bracelet remains snug with minimal wear.
• GD 7.5: Shows signs of daily wear but is not abused, with noticeable polishing on the case. The bracelet shows clear signs of daily wear.

Watches with a rating below GD 7.5 are not listed for bidding to ensure that only high-quality timepieces are available to our members.